q

x₀

−3

−2

−1

1

2

3

2.7

5

5

4

3

3

4

Absolute error

4.10207E−10

4.11536E−10

2.9

4

4

4

3

3

4

Absolute error

4.10207E−10

4.12394E−10

3.1

3

3

3

2

3

3

3.3

4

3

3

2

3

4